package jdbc;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Scanner;

/*
登录功能
 */
public class JdbcLogin {
    public static void main(String[] args) {
        try (Connection connection = DBUtil.getConnection();){

            Scanner scanner = new Scanner(System.in);
            System.out.println("用户名字");
            String username = scanner.nextLine();
            System.out.println("用户密码");
            String password = scanner.nextLine();
            Statement statement = connection.createStatement();
            String sql = "SELECT nickname FROM userinfo WHERE username = '" + username + "'AND password='"+password+"'";
            ResultSet resultSet = statement.executeQuery(sql);
            if (resultSet.next()) {
                String nickname = resultSet.getString("nickname");
                System.out.println("欢迎您"+username);
            }else {
                System.out.println("用户名或密码错误");
            }


        } catch (SQLException e) {
            throw new RuntimeException(e);
        }
    }
}
